/Engine/Source/Runtime/MeshDescription/Public/MeshElementIndexer.h
FMeshElementIndexer ( const [FMeshElementChannels](API\Runtime\MeshDescription\FMeshElementChannels) * Key, const [FMeshElementChannels](API\Runtime\MeshDescription\FMeshElementChannels) * Referencer, [FName](API\Runtime\Core\UObject\FName) AttributeName, int32 ReferencerChannelIndex )